Journal of Food, Agriculture and Environment

Vol 12, Issue 3&4,2014
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Productivity and gas exchange parameters of selected pasture grasses under drought stress 


Anna Kocoń, Mariola Staniak *

Recieved Date: 2014-05-16, Accepted Date: 2014-09-08


The objective of the study was to determine the effects of water stress on productivity, leaf greenness index and gas exchange parameters of selected pasture grasses. A pot experiment was performed in a greenhouse of the Institute of Soil Science and Plant Cultivation, State Research Institute in Puławy, at two soil moisture levels: 70% (optimum moisture content) and 40% (water stress) of field water capacity to study the responses of four pasture grasses: Lolium multiflorum (Lam.), Festuca pratensis (L.), Festulolium braunii ((K. Richt.) A. Camus) and Dactylis glomerata (L.) to water stress. The study showed that water stress caused a significant reduction of yield of all tested grasses. The greatest decrease in the yield of dry matter was observed in L. multiflorum, while the lowest one was found in D. glomerata. Among the studied species of grasses, a higher resistance to stress was recorded for the D. glomerata and F. braunii (drought susceptibility index (DSI) < 1.0). The water content in the soil modified the relative level of chlorophyll in the leaves of tested grasses. Under the conditions of soil drought, greenness index in all species of grasses was higher on average by 19% compared to control objects. The lowest value of greenness index was found in the F. pratensis. Under water stress conditions, all studied species were characterized by lower net photosynthesis (PN) and transpiration (E) rate as compared to control. The mean values of water-use efficiency (WUE) were statistically higher under stress conditions in D. glomerata and F. pratensis than in L. multiflorum and F. braunii.


Grasses, drought stress, dry matter yield, net photosynthesis, transpiration rate, drought susceptibility index, leaf greenness index, water use efficiency

Journal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 3&4
Category: Agriculture
Pages: 131-135

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :